Patbick cummings



Patented Jan. 5 1886.

Y Invenjar. M

P. GUMM1NGS- PADDLE WHEEL,

(No Model.)

lnensesj@ @im UNITED STATES PATENT OEEIcEo PATRICK OUMMINGS, OF NEVTON, MASSACHUSETTS, ASSIGNOR TO PATRICK -J. CUMMINGS, OF SAME PLACE.

PADDLE-WHEEL.

SPECIFICATION forming part of Letters Patent No. 333,607, dated January 5, 1886. Application filed July 16, 1885. Serial No. 171,7l5. (No model.)

To all whom it 'may concern:

Be it known that I, PATRICK GUMMINes, of Newton, in the county'of Middlesex, State of Massachusetts, have invented a certain new and useful Improvement in Paddle-Wheels, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the 1o Same, reference being had to the accompanying drawings, forming part of this speeiiication, in whieh- Figure l 'is a side elevation of my improved paddle-wheel; Fig. 2, a like view of the camplate detached; Fig. 3, a vertical transverse section of the plate shown in Fig. 2; Fig. 4, a side elevation of the head-stock detached; Fig. 5, an edge View of the same, and Fig. 6 a perspective view of one of the paddles or ioats 2O detached. Like letters of reference indicate correspondl ing parts in the different figures of the drawings.

My invention relates to that class of pad- 2 5 die-wheels which are provided with means for automati sally feathering the paddles or floats, and it consists in a novel construct-ion and arrangement of the parts, as hereinafter more fully set forth and claimed, the object being to produce a simpler and more effective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from thefollowing explanation, its extreme simplicity rendering an elaborate description unnecessary.

In the drawings, A represents the boat; B, the shaft, O, the cam-plate; D, the head-stock, 4o and E the paddles or iioats, the boat and shaft being of the ordinary form and construction. The shaft is arranged horizontally in suitable bearings, and is designed to be driven or revolved by steam or otherwise in the usual manner. The cam-plate C is provided with a hole, m, for the shaft B, and is secured to the side of the boat A b y the screws x, which pass through the holes d. Said plate is provided on its outer face with two cams, f h, arranged 5o in reverse or complementary order, the cam h having its ends rounded as shown at r r, and the cam f as shown at t t. The head-stock D is secured to the end of the shaft outside of the plate O by means of the nut o, the end of the shaft being square, and fitted to enter a corresponding hole, Z, in the stock, to prevent the stock from turning on the shaft. The paddles or floats E are arranged radially around the head-stock at equal distances apart, and journaled therein by means of the rods g, said rods being inserted in holes i in said stock, and adapted to revolve axially. Two cross-bars, H J, are rigidly secured to each of the rods g at right angles thereto, and also to each other, the bars I-I being adapted to rest on the cam f when the paddle is in working position or not feathered, and the bars J on the cani It when not feathered, four elongated slots, y, being formed in the head-stock, into or through which the bars J project when the parts are all in position for use, as shown in Fig. 1.

For convenience of description the paddles E in Fig. 1 have been respectively numbered 1, 2, 3, and 4.

In :he use of my improvement, when the y shaft B is revolved in the direction of the arrow in Fig. 1, the inner end of bar II on the feathered paddle Z will strike the curved end tof the cam fon the plate O, and turn said paddle half round, thus bringing it into the position shown at 2, or so that it will strike the water iiatwise. The shaftgcontinuing to revolve, when ithas reached position 8 the inner end of the bar J will strike the rounded or curved end r of the cam h, and cause the paddle to make another half-revolution on its axis, thus feathering it, as it leaves the water, in a manner which will be readily obvious without a more explicit description. A semiannular depression, z, is formed in the face of 9o the plate O, to prevent the bars J from engaging said plate when they are turned into parallelism with the shaftB, as shown in positions 2 and 3 in Fig. 1, a corresponding depression, b, being formed in said plate to prevent the bars H from engaging the saine when turned into the positions 1 and 4 to feather the paddles.

Having thus explained my invention, what I claim is- IOO In a feathering paddle-Wheel, a stationary l nular cams, theinner of said cross-bars oper- Io plate provided with complementary annular ating Within said slots and the other outside cams, a shaft7 a revolving head-stock on said of the periphery of said head-stock, substanshaft having slots near its periphery, and raf tially as described. dial sockets intersecting said slots and extending through them toward the shaft, paddles PATRICK CUMMINGS' having Shanks occupying said sockets, and Vitnesses;

cross-bars on said shanks at right angles to C. A. SHAW,

each other adapted to be engaged by said an- L. J. WHITE. 

